Adjusting means for lister cultivators



P. A. DENISON Jan. 1 0, 192& I 1,655,456

ADJUSTING MEANS FOR LISTER CULTIVATORS Filed Oct. 12, i925 Patented Jan. 10, 1928.

IA'UL JA; DENISOLL, OF; LORENZO, TEXAS ADJUSTING; Mamas FORE ms'rm' out'rrvn'rons:

Application" fiIed 'October 12; 1925: SeriaL N. 62505 5.

The present invention relates to a controller attachment for lister cultivators wherein the lister cultivator includes a frame having movably mounted thereon trucks for the cultivating implements and an equalizing mechanism between the trucks so that they will move in unison toward and away from the center of the frame.

In this type of lister cultivator after the same has been used several times in the same furrows said furrows become covered up and will not properly list so that the cultivator becomes useless in further cultivation and it is necessary to bring into use another cultivator.

The prime object of my invention, there fore, is to provide a controller whereby the equalizer may be fixed to prevent movement of the trucks toward or away from each other. The above object is carried out by an exceedingly simple construction which has proven thoroughly reliable and eflicient in operation, one which is inexpensive to manufacture, strong and durable, and otherwise well adapted to the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a fragmentary top plan View of a lister cultivator of a well known type showing my improved attachment associated therewith,

Fig. 2 is a detail perspective view of the equalizer mechanism and my improved attachment associated therewith.

Referring-to the drawing in detail, it will be seen that 5 designates the frame of a well known type of lister cultivator having the trucks 6 mounted in any suitable manner thereon to move longitudinally of the truck, that is, transversely of the path of movement of the cultivator. The equalizing mechanism disposed between the trucks 6 consist of a ring rotatably mounted on the frame 5 and having links 8 pivotally engaged therewith at diametrically opposite points and pivotally engaged with the respective trucks 6 so that the trucks will move simultaneously toward each other or away from each other in the well known manner.

Referring now in detail to my improvedattachment, it will be seen that the numeral 10 designates a substantially triangular shaped frame fixedly associated in any suitable manner with the ring 7 so as to move therewith. A link 11 is pivotally engaged with the apex of the frame 10 as is indicated at 12 and terminates in a yoke 13 which is pivoted as at 14 with the lower end of a lever 15. An L-shaped bracket 16 is mounted on the frame 5 and has a toothed arcuate segment 17 thereon. An intermediate portion of the lever 15 is pivoted to the bracket 16 adjacent the segment 17 as is indicated at 18, and a hand operated dog 19 is engageable with the teeth of the segment 17, said dog being operable through the grip lever 20. A handle 21 is engaged with the upper end of the lever 15 and at its free extremity terminates in a loop or eye 22.

Vith this attachment associated with the lister cultivator, it will be seen that the ring 7 of the equalizing mechanism may be moved to bring the trucks 6 closer together orfarther' apart as may be desired, and these trucks may be held in this position by the dog 19 engaging the teeth of the segment 17 position against further movement toward or away from each other, and thus the lister cultivator is changed into an ordinary fixed two row cultivator which may be adjusted as desired.

It is thought that the construction, operation, utility, and advantages of this invention will now be clearly understood by those skilled in this art without a more detailed description thereof. The present embodiment of the invention has been disclosed merely by way of example since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that numerous changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the angular frame, a bracket attachable to the frame of the cultivator, a lever pivoted on the bracket, one end of said second lever pivotally connected with the link means associated with the second lever whereby it may be held in different adjusted positions, and a handle attached to the upper end of the second lever and terminating in a loop.

In testimony whereof I affix my signature.

PAUL A. DENISON. 

